Prevent spread of child sexual abuse imagery
I love the idea of ProtonDrive, and I value privacy. Yet, a system like ProtonDrive can be used by pedophiles to share pictures or videos of child sexual abuse, which must be prevented. To do this, I'd appreciate if ProtonDrive would classify any images upon upload and prevent sharing if they are very likely to be of such nature.
This restriction would make it much harder for abusive content to spread, and at the same time not invade anyones privacy, since the result of the classification is not shared with anyone. It just prevents the user from sharing the data.
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John commented
The downside of that is that once you open that door and remove the "zero knowledge" policy, you have now made the device much easier to hack and compromise by cyber thieves or bad actors. Unlike what anyone thinks, it is absolutely impossible for an entity to have a key to your files and not have it potentially fall into the hands of bad actors or cyber thieves. There are some actually trying to outlaw encryption, and if that is successful, the Internet will cease to exist. There is absolutely zero possibility of a bulletproof back door, anyone associated with cyber security will verify that.
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Why Should I? commented
Hell No! Do NOT implement something this blindingly ignorant! The arguments in favor are profoundly dishonest.
For the benefit of the whoever posted the feature request.
#1 How would protonmail classify files if they're already encrypted without protonmail possessing a master decryption key? Defeats the purpose of protonmail and advances the agenda of those against end-to-end encrypted email - which exists for a reason.
#2 If child porn is found, in most nations the service provider is legally obligated to inform the proper authorities ( but you already knew that )
Pedofiles also breathe air. That doesn't mean everyone is obligated to stop breathing or obligated to report every breath for inspection by their local authorities. Even ' for the sake of the children ".
Based on your idea, I think Apple I-cloud services would be a better fit for you. There, each file uploaded to the cloud is first compared to a database provided by the US FBI in real time. Meaning at any given instant, the same agency has a list of files being uploaded into the I-cloud. Perfect for persecuting whistleblowers and leakers. Do you see the problem with the concept? You're free to use Apple I-cloud to your heart's content.
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David commented
While this is a nice idea and a noble goal, the whole idea of the Proton suite is to know as little as possible for as short a time as possible and shared with as few other computers as possible. I don't see how this could be implemented without scanning images and running queries on other servers which would weaken the privacy of Proton. It's also important to note that it would be trivially simple to circumvent the scanners by simply compressing all images into a password protected zip folder that automatic scanners couldn't read.
Please DON'T try and implement something like this.